From the course: Advanced iOS App Development: Core Motion
Join today to access over 22,500 courses taught by industry experts or purchase this course individually.
Add elapsed tIme - iOS Tutorial
From the course: Advanced iOS App Development: Core Motion
Add elapsed tIme
- [ Voiceover] The Pedometer application so far, cannot measure pace for all devices. We tried using the built in average pace, to the CM Pedometer class, but that didn't work for the iPhone 5s I'm using. Pace, however, is a calculated value, and it's a good example of getting around the lack of device availability. I've got distance on this device, and all I need is time to compute pace on my own. Let's add elapsed time to the app, from that I'll compute an average pace. An easy way to get elapsed time, is to add a counter to the current timer, and display the counter. At the top of the code, add the following two declarations: var elapsed seconds equals 0.0 and let interval equals 0.1 I'll use elapsed seconds as a counter, and interval as an increment. I'll change my timer to use this interval. Slide down to start timer. Change the time interval from 1.0 to interval. In the completion block, add an increment to elapsed seconds. Self.elapsed seconds plus, equals self.interval. With…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.